Amends GS 20-114 to provide that it is the duty of every city or village police officer and every sheriff, deputy sheriff and other county officers to arrest those committing a violation within the limits of their jurisdiction, except on the interstate highways. Further adds the requirement that a local law enforcement officer enforce the Article (Motor Vehicle Act), despite the new limitation, if the officer (1) has been requested to assist a State law enforcement officer in enforcing the Article, (2) is responding to an emergency situation within the officer’s territorial jurisdiction, or (3) is investigating a crash within the officer’s territorial jurisdiction. Provides that prosecutions for offenses committed before the date that the act becomes law are not abated or affected by the act and the statutes that would be applicable but for the act remain applicable to those prosecutions.